#include <stdio.h>

int main(void)
{
	int a = 1, b = 2, c = 3, d = 4, n;

	printf("%d\n", a < b == c < d);

	n = 3;
	printf("%d\n", n = a + b);

	n = 3;
	printf("%d\n", n == a + b);

	return 0;
}